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Minireviews
Retrospective Cohort Study
Gopal Veeraraghavan, Amelie Therrien, Maya Degroote, Allison McKeown, Paul D Mitchell, Jocelyn A Silvester, Daniel A Leffler, Alan M Leichtner, Ciaran P Kelly, Dascha C Weir 
World J Gastroenterol 27(13):1311-1320. Published online Apr 7, 2021. doi: 10.3748/wjg.v27.i13.1311
Retrospective Study
Toshihiro Nishizawa, Shuntaro Yoshida, Akira Toyoshima, Tomoharu Yamada, Yoshiki Sakaguchi, Taiga Irako, Hirotoshi Ebinuma, Takanori Kanai, Kazuhiko Koike, Osamu Toyoshima 
World J Gastroenterol 27(13):1321-1329. Published online Apr 7, 2021. doi: 10.3748/wjg.v27.i13.1321
Scientometrics
Case Report